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China’s “Crazy Li” builds drones that can redirect powerful metal-cutting laser beams

The laser beam from the drones will be strong enough to cause blindness or vaporize exposed materials. (Image source: David Henrichs via Unsplash)
The laser beam from the drones will be strong enough to cause blindness or vaporize exposed materials. (Image source: David Henrichs via Unsplash)
Chinese scientists, led by Li Xiao developed a device enabling small drones to reflect powerful ground-based laser beams, capable of cutting through metal. The lightweight system overcomes previous size and vibration challenges.

Chinese scientists have developed a lightweight laser system that allows small drones to emit powerful beams capable of cutting through metal. Led by Li Xiao from the National University of Defence Technology, the research solves a huge challenge - deploying high-powered lasers on compact platforms, which previously required truck-sized equipment.

The breakthrough uses a redirecting device with two telescope-like tubes. One tube receives a laser beam from a ground-based emitter, while the other reflects it toward a target. High-precision servo mechanisms (systems that use motors and sensors to precisely control the movement of components) and reflective mirrors are present for the sake of accuracy, enabling the laser to bypass obstacles like buildings and strike vulnerable spots.

The system reportedly boosts laser power to 30kW or higher, with beam intensities strong enough to cause blindness or vaporize exposed materials. The researchers addressed drone vibration issues—which scatter beams and reduce precision—by incorporating advanced vibration isolation technology and optical stabilization. The team is envisioning a future where multiple drones work together to detect 'targets' and request laser illumination from the ground for faster response times. Now, the research says the lasers are capable of cutting through metals - which, of course, could have serious side-implications.

Drones with such potential could serve as cost-effective platforms for precision laser systems, which could open new doors for both military and industrial applications. 

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> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > News > News Archive > Newsarchive 2024 12 > China’s “Crazy Li” builds drones that can redirect powerful metal-cutting laser beams
Anubhav Sharma, 2024-12-16 (Update: 2024-12-16)